Journal ArticleDOI
Arctic springtime depletion of mercury
W.H. Schroeder,Kurt G. Anlauf,Leonard A. Barrie,J. Y. Lu,Alexandra Steffen,D. Schneeberger,Torunn Berg +6 more
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In this paper, the authors show that during the spring (April to early June) of 1995, there were frequent episodic depletions in mercury vapour concentrations in Arctic surface air.Abstract:
The Arctic ecosystem is showing increasing evidence of contamination by persistent, toxic substances, including metals such as mercury1, that accumulate in organisms. In January 1995, we began continuous surface-level measurements of total gaseous mercury in the air at Alert, Northwest Territories, Canada (82.5° N, 62.5° W). Here we show that, during the spring (April to early June) of 1995, there were frequent episodic depletions in mercury vapour concentrations, strongly resembling depletions of ozone in Arctic surface air, during the three-month period following polar sunrise (which occurs in March)2,3.read more
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Recent climate change in the Arctic and its impact on contaminant pathways and interpretation of temporal trend data.
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References
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Journal ArticleDOI
Ozone destruction and photochemical reactions at polar sunrise in the lower Arctic atmosphere
Leonard A. Barrie,Jan W. Bottenheim,Russell C. Schnell,Paul J. Crutzen,Paul J. Crutzen,R. A. Rasmussen +5 more
TL;DR: In this paper, the authors focus on recent ground-level observations from the Canadian baseline station at Alert (82.5° N, 62.3° W) and from aircraft that show that ozone destruction is occurring under the Arctic surface radiation inversion during March and April as the Sun rises.
Journal ArticleDOI
Vertical fluxes of volatile mercury over forest soil and lake surfaces in Sweden
TL;DR: A flux chamber technique applied to volatile mercury species has been developed and evaluated in this article, which can be used to measure the direction and magnitude of mercury transfer between the atmosphere and lake or soil surfaces.
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